TY - JOUR
T1 - Biobutanol as a promising liquid fuel for the future - recent updates and perspectives
AU - Pugazhendhi, Arivalagan
AU - Mathimani, Thangavel
AU - Varjani, Sunita
AU - Rene, Eldon R.
AU - Kumar, Gopalakrishnan
AU - Kim, Sang-Hyoun
AU - Ponnusamy, Vinoth Kumar
AU - Yoon, Jeong-Jun
PY - 2019/10/1
Y1 - 2019/10/1
N2 - Butanol is a potential alternative fuel for compensating the depletion of fossil based liquid fuels. Butanol can be easily mixed with either gas or petrol, at any percentage and used as a fuel. Clostridia are the main fermentative organisms used for the production of biobutanol. They are potentially known for their capacity to ferment different types of renewable biomass to butanol through the acetone-butanol-ethanol (ABE) fermentation pathway. This review deals with the mechanism of biobutanol production from biomass feedstocks and the issues and challenges involved in the production of biobutanol. The different types of anaerobic biobutanol production namely fed-batch fermentation, continuous fermentation, and two-stage continuous fermentation have been clearly enunciated. Further, different butanol recovery methods such as adsorption, gas stripping and pervaporation have also been discussed in this review. Certain issues affecting the biobutanol production such as sporulation and solventogenesis have been summarized. These types of problems could be overcome by metabolic engineering of Clostridia, which will enhance the resistance of the microorganisms towards high solvent concentrations and thereby increasing the solvent production. The genetic engineering approach is able to overcome the constraints with wild-type strain by understanding the process of solventogenesis in order to construct or modify the strains with improved downstream processing potential for economically advantageous biobutanol production.© 2019 Elsevier Ltd. All rights reserved.
AB - Butanol is a potential alternative fuel for compensating the depletion of fossil based liquid fuels. Butanol can be easily mixed with either gas or petrol, at any percentage and used as a fuel. Clostridia are the main fermentative organisms used for the production of biobutanol. They are potentially known for their capacity to ferment different types of renewable biomass to butanol through the acetone-butanol-ethanol (ABE) fermentation pathway. This review deals with the mechanism of biobutanol production from biomass feedstocks and the issues and challenges involved in the production of biobutanol. The different types of anaerobic biobutanol production namely fed-batch fermentation, continuous fermentation, and two-stage continuous fermentation have been clearly enunciated. Further, different butanol recovery methods such as adsorption, gas stripping and pervaporation have also been discussed in this review. Certain issues affecting the biobutanol production such as sporulation and solventogenesis have been summarized. These types of problems could be overcome by metabolic engineering of Clostridia, which will enhance the resistance of the microorganisms towards high solvent concentrations and thereby increasing the solvent production. The genetic engineering approach is able to overcome the constraints with wild-type strain by understanding the process of solventogenesis in order to construct or modify the strains with improved downstream processing potential for economically advantageous biobutanol production.© 2019 Elsevier Ltd. All rights reserved.
KW - ABE fermentation
KW - Biobutanol
KW - Biofuel
KW - Clostridia
KW - Renewable biomass
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U2 - 10.1016/j.fuel.2019.04.139
DO - 10.1016/j.fuel.2019.04.139
M3 - RGC 21 - Publication in refereed journal
SN - 0016-2361
VL - 253
SP - 637
EP - 646
JO - Fuel
JF - Fuel
ER -
